Automatic dumping-elevator.



G. E. RICHMOND. AUTOMATIU DUMPINB ELEVA'IOI?.A APrLIoATIon num92m15.190s.

94:0;065. Patented Nov. 16,1909

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, o h Y GEORGE E. RICHMOND, 0F HOUSTON, TEXAS.

AUTGHATIC DUMPING-ELEVATOR.

Specification of Letters Patent.

Patented Nov. 16, 1909.

Application Bled September 15, 1008. Serial No. 453,071.

To all 'whom 'it may concern:

Be it known that I, Gnomi: E. BicluloND, citizen of the United States,residing at Houston, in the county of Harris and State of Texas, haveinvented certain new and useful Improvements in Automatic Dumping-Elevators. of which the following is a specification.

My invention relates to new and useful improvements in elevators andmore particularly to that class of elevators which unload utomatically.

The object of the invention is to provide a device of this characterwhich will automatically unload anything that has been placed in it forelevation to a. stated place.

Another object of the invention is to rovide mechanism whereby the loadcarrie by the elevator may be automatically unloaded from the samemechanism at different heights by means of a tri ping device which canbe adjusted on the iiame work to any desired height.

A further feature resides in the arrangement of a shifting mechanism sothat when either elevator reaches the height the elevators will be madeto reverse their directions.

Finally the object of the invention is to provide a device of thecharacter described that will be strong, durable, eilicient, easilyconstructed and comparatively inexpensive to produce and one which willtake up e small amount of room and in which the parts will not be likelyto get out of working.;` order.

With the above and other objects in view m invention has particularrelation to certam novel features of construction and operation anexample of which is given in this specification and illustrated iu theaccompanying drawings, wherein:

Figure 1 is a side elevation of my device. Fig. 2 is a front elevationof the same showing the shifting mechanism.

Referring more particularly to thc drawings the numeral 1 designates afoundation upon which my device is built. Upon this foundation u right.supports t! rest. 'lhcse supports arc icld in proper :elution to curhother by inca ns of close-beams 3; elevators 4 operato between suidsupports.

5 designates tho curs which nro )lx-otvrl to tho elevators nl; U und arcnormal y held ul ou upright position by coil s )rings 'c' ut tho topthereof which are of .sul icicut. strength to hold the cars in anupright position even when carrying a great weight.

On the front of one of the elevators 4 is a collar 8 throu h whichoperating cord 9 slides. This co lar is provided with a spring for thepurpose of breaking.,r the shock of a sudden sto when the car iselevated to a suiiicent heloht that collar 8 will strike sto 10immovablly mounted on operating cor 9; which occurs just as the car isdeliected forward to a de ec suliicicnt that the contents of said carwill be dumped out of same. This movement of the car is caused by itsstriking a V shaped deflector 11. This defiector is so ositioned, withrespect to supports 2 and t. e car 5, that when t e elevator ascends theto of the rear side of the car, carried by sai elevator, comes intocontact with the sloping side of the dcliector; and the car brin pivotedto the elevator, at the point 6, an bein yieldably held in an uprwhtposition t erein by sprin 7, is deflected forward as its rear side sides up the outwardly divergent side of deflector 11, and its contentsthereby discharged.

The numeral 12 designates a pulley wheel upon which cable 13 operates.One end of this cable is attached to one of the cars, and the other endto the other car, and serves to su port said cars. Cord 9 is providedfor tie urpose of operating and shifting drive bets 14 and 15, andoperates upon the pulley 16 at the top of su port 2. One end of thiscord passes aroun pulley 20 secured to su port :2 ucar its lower end,and also arounc pulley wheel 21, secured to a suitable cross beam, at apoint preferably above shifting har 17, and near the end thereof,remotcst from pulley 20, and, after passing around said pu ley Q1 issecured to said shifting har I?, 1n any suitable manuel', so that anupward pull on the end of cord 9 nssiug around pulley Q0 will cause saidmr to move in n lateral direct ion. 'lhc other und of said cord Elpasses around the pulle 23, carried by support 2, ucar its lower en(operates on the intervening pulleys 22 und M and ls secured in anysuiluhlo n'muuer, to shifting bnr 17 at a point naar the cud thorool,rmuotcst from pulley E23; so that au upward pull ou this und ol cord ilwill causo shifting hur I7 to more iu u lutcrul direction the oppositi-`ol that. luovouumt unused hy the upward pull on that end of su'ul oordpussiug around pulley 20, as nhove described.

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lVhen the shifting bar 17 moves in the direction first above described,it shifts one drivin belt from the driven pulley 1S to one o the idlers19 and at the same time shifts the otliei` driving belt from the otheridler to the drive pulley; and when shifting bar 17 moves in the otherdirection the drive belts are shifted back to their original position,and as drive belt 11i is crossed, it

'ves a motion to drive pulley 18, which 1s lie reverse of that impartedby drive belt 15, which is not crossed, and consequently each time thedrive belts are shifted the movement of the elevators is reversed. Thisshifting bar 17 is rovided with lugs 31 for engaging with sai' belts andcausing them to move with said bar, as liereinatter set forth.

25 is a shaft carrying idlers 19 and drive pulley 18 and also gear wheel26. This gear wheel 2G operates gear wheel 2T which in turn operatesshaft .28 which carries it. This shaft also carries operating pulley 29.A cable 30 operates on palle 29 and being attached at its ends to tlicottom of each of the elevators transmits motion to each of them.

The o eration of m device is as follows: When t e machinery 1s runningat will the drive belts 14 and 15 run upon the icllers 19 and theelevators are thus at rest, but when it is desired to operate theelevator the operator may throw one of the belts to the drive pulley 18and thus set the elevators in motion. The shift bar carries lugs 31which force the belts back and forth 1n accordance with the motion ofthe shifting bar. When the elevators are put in motion one car willascend and the other car being attached to the saine cable will descendat the same time and the saaie distance. The collar 8 comin in contactwith stop 10 forces cord 9 up2 w ich being attached to shift bar 17gives it a lateral motion and shifts the drive belts from the drivepulley and one idler to drive pulley and the other idler as abovedescribed. Near the lower end of this cord and stationary thereon, is astop 32 also provided with a spring for the saine purpose as theslpi'ing carried by collar S efore nienlioncf. lVhen the descendingelevator comes in contact with stop 2X2 the coi'd 9 is pulled inopposite direction, and shift bar 1T again shifts the bolts and themotion of the elevators is again reversed. This operating cord passesthrough cach of these springs and while thc one carried by the cordremains stationary thc one rarried by tho car moves freely upon theoperating cord.

When the elevator rises lo llio desired height thc car strikes the Vshaped adjustable dcllrctol.' 1l and is lillrd forward to auch a. degreethat tho controls carried hy the cai' will lie caused to fall oat.',lliia doflcctor is provided with lugs or clamps 33, extendinglaterally from each end of the transverse brace of dellcctor 11. Theseclamps embrace supports 2 and are secured to said supports by means ofpins 34, which pass through said clamps and through holes 35, insupports 2. A number of said holes 35 are provided to permit thevertical ad- 'iistment of the delector 11 on supports 2. Vhen the carreaches this height the springs carried by the elevator will strike stopl0 upon the operating cord and cause the direction of the elevators tobe immediately reversed and when the car reaches a certain position inthe opposite direction the elevator will strike stop 32 located on theoperating cord, again causing reversal of the elevators as abovedescribed.

While this articular form is shown I do not desire to iiiiit myself tothis particular construction. The construction may e varied in anymanner so that the priiic le of the invention is not departed from.

Special attention is called to the method of pivotall holding car inosition in the elevator a so to the adjustable method of tilting the carso that the contents thereof will be automatically unloaded.

What I claim ist- 1. In an automatic elevatin device, ele- 95 vators,cars carried by said e evators, said cars being pivotally mounted insaid elevators means for securing said dumping device to said framespi-in carried b each of said elevators, one en of same ein secured toits elevator and the other end t ereof being secured to its car, a framein which said elevators operate, an adjustable dumping device mountedupon said fram pulleys, cables operating in said pulleys an eingattached to said elevators and means for rotating said pulleys.

2. In an automatic elevating device, a frame, an elevator, a shiftingdevice, means for operating same, a dumping device, means for restoringsaid elevator to its normal position, means for lowering and raisingsaid elevator and means for automatically stopping said elevator at anygiven oint.

3. Iii an automat-ic elevating mec iaiiisin, 116 an elevator frame, anelevator carryin a pivolally mounted car, a spring so attac ed to saidcar and said elevator as to tend to hold said car in an u right,position and against being tilted, a tiltin device adjust- 120 ablymounted upon said ccvator and so placed that it will tilt one or morecars when broughtI in contact willi it.

4. An automatic elevator in combination willi an elevator frame, cablesfor operating 125 said elevator moans for operating said cables, apivotully mounted cui' carried hy said elevator adapted lo lill.forward, moans for tilting said car, moans for restoring said car to itsnatural position, a shifting dcvire |30 carryin s rocket wheels, idlers,u drive p ul ley, a s ii ing bnr and means for operating Said shiftingbar.

5. In an automatic elevator, un elevator frame, on elevator adapted tooperate therein, an elevator car, shifting device, an :1djustubledumping device, menus for operating said elevator, means for operatingsaid cnr und means for operating said. shifting device.

6. In an automatic elevator, the combination with n frame, an elevatoradapted to operate therein, and a car, adapted to tilt forward carriedby said elevator, of menus for tilting said ear, means for restoringsaid car to its normal position, n shifting bur, means operated by saidelevator for imparting motlon to said bar, means for operating saidelevator and means for reversing the operation of said last named meansund reversing the movement of the elevator.

7. In an automatic elevator, the combinaition with a frame, un elevatoradapted to operate therein, a cur adapted to tilt forward carried bysaid elevator, of means for tilting said car, means for restoring saidcar to its normal position, a shifting barx means operated b y saidelevator for imparting motion to said bar, means for operating saidelevator and means for reversing the operation of said last named means,said reversing means comlllnrising a plurality of idlers and a drive puey and n plurality of power transmitters for operating on said idlersund pulley and imparting motion to the same.

In testimony whereof I have signed my name to this s eificatiou in thepresence of the two subscribing witnesses.

GEORGE E. RICHMOND.

Witnesses:

'WAL A. CA'rzmr, J. C. CARPENTER.

